Round|Natural|GIA

1.50ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6491906860

Certificate GIA 6491906860

Diamond specifications and retailer prices

From HK$37,667 HKD
$4,801 USD
As of October 30, 2026
Save HK$32,579 HKD (46%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$79,744 HKD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6491906860. Listed at 21 retailers as of October 30, 2026, with a 86% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6491906860
Dimensions7.37 × 7.35 × 4.51 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
7.37 mm7.35 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6491906860
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: HK$56,949 HKD|Low: HK$33,227 HKD|High: HK$71,093 HKD|Avg: HK$50,734 HKD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6HK$36,639 HKD
Retailer 7HK$39,872 HKD
Retailer 3HK$45,438 HKD
Retailer 8HK$47,380 HKD
Retailer 5HK$49,156 HKD
Retailer 1HK$56,949 HKD
Retailer 4HK$58,579 HKD
Retailer 2HK$70,246 HKD

39 data points across 8 retailers

21 retailersHK$37,667 HKD to HK$70,246 HKD

Retailer 1
-
HK$36,639 HKD
$4,670 USD
Price last confirmed 7 days ago
B+
Retailer 2
-
HK$37,667 HKD
$4,801 USD
View
B+
Retailer 3
-
HK$38,679 HKD
$4,930 USD
View
B
Retailer 4
-
HK$39,872 HKD
$5,082 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$40,445 HKD
$5,155 USD
View
B
Retailer 6
-
HK$41,602 HKD
$5,303 USD
View
B
Retailer 7
-
HK$42,689 HKD
$5,441 USD
View
Retailer 8
-
HK$43,191 HKD
$5,505 USD
View
Price last confirmed 31 days ago
Retailer 9
-
HK$43,191 HKD
$5,505 USD
View
Price last confirmed 33 days ago
B+
Retailer 10
-
HK$45,438 HKD
£4,560 GBP
View
Retailer 11
-
HK$47,380 HKD
A$9,291 AUD
View
Price last confirmed 28 days ago
B
Retailer 12
-
HK$48,251 HKD
$6,150 USD
View
B
Retailer 13
-
HK$48,251 HKD
$6,150 USD
View
B
Retailer 14
-
HK$49,156 HKD
€5,967 EUR
View
Retailer 15
-
HK$49,836 HKD
$6,352 USD
View
Price last confirmed 33 days ago
B
Retailer 16
-
HK$49,899 HKD
$6,360 USD
View
Retailer 17
-
HK$52,574 HKD
$6,701 USD
View
Price last confirmed 9 days ago
B
Retailer 18
-
HK$56,949 HKD
£5,715 GBP
View
B
Retailer 19
-
HK$58,579 HKD
ZAR 120,620 ZAR
View
B
Retailer 20
-
HK$70,246 HKD
£7,050 GBP
View
Most Expensive
NZ Jewellers
83772850-e0ac-4468-a4d2-bf82afc77711 · Sep 28
HK$79,744 HKD
$10,164 USD
View
Price last confirmed 34 days ago
20 more retailers have this diamond
Prices start from HK$37,667 HKDSave up to HK$32,579 HKD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.50ct Round
HK$37,667 HKD